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Finding the Fourth Proportional to 62,620.88, 86,416.12 and 34,326.40

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Solution

The fourth proportional to 62,620.88, 86,416.12 and 34,326.40 is: 47,370.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,620.88 : 86,416.12 = 34,326.40 : x
  2. Step 2: Convert to fraction form
    62,620.88/86,416.12 = 34,326.40/x
  3. Step 3: Cross multiply
    62,620.88x = 86,416.12 × 34,326.40
  4. Step 4: Simplify right side
    62,620.88x = 2,966,354,301.57
  5. Step 5: Solve for x
    x = 2,966,354,301.57/62,620.88
  6. Step 6: Final answer
    x = 47,370.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.